package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 统一异常处理
 *
 * @author Don
 * @date 2020/10/25 12:46
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e) {
        log.error("数据校验出现问题{}，异常类型：{}", e.getMessage(), e.getClass());

        BindingResult bindingResult = e.getBindingResult();
        Map<String, String> errorMap = new HashMap<>(16);
        bindingResult.getFieldErrors().forEach(
                fieldError -> errorMap.put(fieldError.getField(), fieldError.getDefaultMessage())
        );

        return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(), BizCodeEnum.VALID_EXCEPTION.getMsg()).put("data", errorMap);
    }

    @ExceptionHandler(value = Exception.class)
    public R handleException(Exception e) {
        log.error("其他Exception：{}，异常类型：{}", e.getMessage(), e.getClass());

        return R.error(BizCodeEnum.UNKNOWN_EXCEPTION.getCode(), BizCodeEnum.UNKNOWN_EXCEPTION.getMsg()).put("data", e.getMessage());
    }

}
